APA-referens (7:e uppl.)

Barrett, H. (1968). Practical methods in speech (2d ed.). Holt, Rinehart and Winston.

Chicago-referens (17:e uppl.)

Barrett, Harold. Practical Methods in Speech. 2d ed. New York: Holt, Rinehart and Winston, 1968.

MLA-referens (9:e uppl.)

Barrett, Harold. Practical Methods in Speech. 2d ed. Holt, Rinehart and Winston, 1968.